EP3019667A2 - Abscheidungswerkzeug für abraum - Google Patents

Abscheidungswerkzeug für abraum

Info

Publication number
EP3019667A2
EP3019667A2 EP14742382.6A EP14742382A EP3019667A2 EP 3019667 A2 EP3019667 A2 EP 3019667A2 EP 14742382 A EP14742382 A EP 14742382A EP 3019667 A2 EP3019667 A2 EP 3019667A2
Authority
EP
European Patent Office
Prior art keywords
slurry
water
deep sea
line
return line
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP14742382.6A
Other languages
English (en)
French (fr)
Inventor
Johannes Bartholomeus VAN DOESBURG
Pieter Abraham LUCIEER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IHC Holland lE BV
Original Assignee
IHC Holland lE BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IHC Holland lE BV filed Critical IHC Holland lE BV
Publication of EP3019667A2 publication Critical patent/EP3019667A2/de
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C49/00—Obtaining peat; Machines therefor
    • E21C49/02—Obtaining peat; Machines therefor by excavating
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/8858—Submerged units
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/8858—Submerged units
    • E02F3/8875—Submerged units pulled or pushed
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/905—Manipulating or supporting suction pipes or ladders; Mechanical supports or floaters therefor; pipe joints for suction pipes
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F7/00—Equipment for conveying or separating excavated material
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F7/00—Equipment for conveying or separating excavated material
    • E02F7/005—Equipment for conveying or separating excavated material conveying material from the underwater bottom
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F7/00—Equipment for conveying or separating excavated material
    • E02F7/06—Delivery chutes or screening plants or mixing plants mounted on dredgers or excavators
    • E02F7/065—Delivery chutes or screening plants or mixing plants mounted on dredgers or excavators mounted on a floating dredger
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/0099—Equipment or details not covered by groups E21B15/00 - E21B40/00 specially adapted for drilling for or production of natural hydrate or clathrate gas reservoirs; Drilling through or monitoring of formations containing gas hydrates or clathrates
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C50/00—Obtaining minerals from underwater, not otherwise provided for

Definitions

  • the present invention relates to a deep sea mining method comprising, providing a deep sea mining system for mining matter from a bottom of a body of water.
  • GB2495287 relates to a riser system for transporting a slurry from a position adjacent to the seabed to a position adjacent to the sea surface.
  • GB2495287 teaches to provide first and second risers; a slurry pump system to transport slurry up one of the risers; and a waste water pump system to return waste water down one of the risers.
  • the slurry pump system and the waste water pump system are selectively connectable to each of the risers to allow each riser to be either a slurry riser or a waste water riser.
  • WO 2010/092145 Al is another example having a riser conduit and a tailings stream. Tailings are just disposed via a disposal pipe, see fig. 3. During operations, tailings will accumulate and may easily cause problems in that a site of interest is covered.
  • US2012/234552 Al relates to a system for harvesting natural gas from a clathrate deposit.
  • a pipe or tube is suggested for distributing the water back into the ocean away from the harvesting location.
  • it is also suggested to pump the debris through a particulate disposal system for returning the debris to the sea floor at a location that is removed from the clathrate deposit. Still over time, debris will accumulate and may easily cause problems.
  • WO 2011/072963 Al relates to a method of converting a methane containing hydrate deposit in the water bottom into a marketable product.
  • Fig. 2 shows a tailing disposal pipe to a site. Again, over time, debris will accumulate and may easily cause problems.
  • US2009/284068 Al relates to a method of monitoring and adjusting a flow rate of a slurry in a riser system of a deep sea mining system. It is suggested to discharge waste water at the sea floor level.
  • the prior art disposes debris rather than water alone, it is disposed at a fixed location such that over time, debris will accumulate and may easily cause problems. Summary of the invention
  • the invention aims to provide a more efficient deep sea mining method.
  • Another object of the invention is to improve a known deep sea mining method in that a problem associated therewith is at least partly solved.
  • Yet another object of the invention is to provide an alternative deep sea mining method.
  • a deep sea mining method comprising providing a deep sea mining system for mining matter from a bottom of a body of water, the mining system comprising;
  • slurry line coupled with a pump system to transport said slurry from the bottom of the body of water
  • the deep sea mining method further comprising spreading the non valuable slurry part over the bottom of the body of water in a controlled manner.
  • the mining system comprises a unit for processing mined matter, wherein the return line is in fluid communication with the slurry line through the processing unit.
  • a processing unit may take the form of a floating object like a vessel, a subsea platform, or a supported platform.
  • the spreading of the non valuable slurry part over the bottom of the body of water comprises moving the return outlet over the bottom of the body of water, also seafloor, preferably in a desired pattern.
  • the moving of the return outlet over the seafloor intends to distribute the non valuable slurry part over the bottom of a body of water.
  • the moving of the return outlet over the seafloor is preferably predictable e.g. along a desired pattern, however it may involve intended movement caused by sea currents which has an unpredictable component. It will be clear that, in case of the movement caused by sea currents, despite the non predictable movement of the return outlet, over time the non valuable slurry part is distributed in an even manner.
  • the matter may comprise gashydrates.
  • this is realized with a deep sea mining system for mining matter from a bottom of a body of water, wherein the system comprises,
  • slurry line coupled with a pump system to transport said slurry from the bottom of the body of water
  • a return line in fluid communication with the slurry line and distinguishable from the slurry line, for transporting a non valuable slurry part to the bottom of the body of water and having a return line outlet proximate the seafloor, and
  • the spreading device spreads the non valuable slurry part over the bottom of the body of water in a controlled manner and thus enables to mine more efficient in that non valuable slurry part is distributed in controlled manner which includes that non valuable slurry part does not cover slurry still to be excavated from the bottom of a body of water.
  • the mining system comprises a unit for processing mined matter, wherein the return line is in fluid communication with the slurry line through the processing unit.
  • the processing unit may subject the slurry to any desired process like segregate the slurry into a desired part and a non valuable slurry part.
  • the spreading device comprises a boom member and wherein the return line outlet is coupled with the spreading device through said boom member for moving the outlet relative to the bottom of the body of water.
  • the spreading device comprises a vehicle for moving over the bottom of the body of water and coupled with the return line outlet for moving the return outlet over the bottom of the body of water in a desired pattern.
  • the moving of the return outlet over the seafloor intends to distribute the non valuable slurry part over the bottom of a body of water.
  • the moving of the return outlet over the seafloor is predictable.
  • the vehicle is remotely controllable.
  • the vehicle is therefore provided with control means to control the vehicle in a manner known per se.
  • FIG. 1 in side view a mining system according to the invention
  • FIG 1 a deep sea mining system 1 is shown.
  • the system 1 is suitable for mining matter 2 from a bottom 3 of a body of water 4, typically a seafloor at a depth of between 200 and 3000 meters, more specifically between 400 and 2000 meters.
  • the deep sea mining system 1 comprises a slurry line 5 for transporting slurry.
  • the slurry contains seawater and excavated matter which is separated from the bottom 3 by an excavation device 13 known per se.
  • the shown excavation device 13 has a cutter arm 11 which arm is provided with a cutting head 12.
  • the cutter arm 11 is hingeably coupled with an excavation device body 10.
  • the slurry line is coupled with a pump system 6 to transport said slurry from the bottom of the body of water.
  • the deep sea mining system 1 comprises a return line 7.
  • the return line 7 is suitable for transporting slurry, in particular suitable for transporting a non valuable slurry part to the bottom 3 of the body of water 4.
  • the return line 7 is in fluid communication with the slurry line 5.
  • the return line 7 is distinguishable from the slurry line.
  • the return line 7 has a return line outlet 16 as shown proximate to the seafloor 3.
  • the deep sea mining system 1 comprises a spreading device 14 coupled with the return line outlet 16 for spreading the non valuable slurry part over the bottom 3 of the body of water 4 in a controlled manner.
  • the spreading device 14 here comprising a boom member 15.
  • the return line outlet 16 is coupled with the spreading device 14 through said boom member 15 for moving the outlet 16 relative to the bottom 3 of the body of water 4.
  • the spreading device 14 may take the form of e.g. a crawler having a boom, a Remotely operated vehicle (ROV), which spreads the non valuable slurry part in a pre determined path, or dot pattern.
  • ROV Remotely operated vehicle
  • the pump system 6 is coupled with a vessel 20 via a coupling line 9 for supplying the pump system 6 the required energy and controls.
  • the pump system 6 is supported by a pair of support members 23 which members are placed on the bottom 3 of the body of water 4.
  • the deep sea mining system 1 comprises a slurry line 5 for transporting slurry.
  • the slurry line 5 is coupled with the vessel 20.
  • the deep sea mining system 1 comprises a return line 7.
  • the return line 7 is coupled with the vessel 20 as well such that the slurry is transported up to proximate the water surface 8.
  • the return line 7 is in fluid communication with the slurry line 5 via the vessel 20.
  • the mining system 1 comprises a unit (not shown) for processing mined matter, wherein the return line is in fluid communication with the slurry line through the processing unit.
  • the unit is place on the vessel 20.
  • the spreading device is a vehicle for moving over the seafloor while coupled with the return line outlet 16 for moving the return outlet over the bottom 3 of the body of water 4 in a desired pattern.
  • the spreading device 14 is therefore provided with rolling members 21 suitable for a seafloor.
  • the pump system 6 is a floating system which is able to float in a manner known per se and is kept in place via the coupling line 9 coupled with the vessel 20 at its upper end.
  • the spreading device body 17 may be suspended from an auxiliary vessel 21 by a suitable suspension means 22 like a cable.
  • the mining system 1 comprises a unit (not shown) for processing mined matter, wherein the return line is in fluid communication with the slurry line through the processing unit. Here, the unit is place on the vessel 20.
  • the pump system 6 is a floating system which is able to float in a manner known per se and is kept in place via the coupling line 9 coupled with the vessel 20 at its upper end.
  • the spreading device is floating for moving over the seafloor while coupled with the return line outlet 16 for moving the return outlet over the bottom 3 of the body of water 4 in a desired pattern.
  • the spreading device 14 is therefore provided with rolling members 21 suitable for a seafloor.
  • a non valuable slurry part is spread over the bottom 3 of the body of water in a controlled manner. This is beneficial since it enables to uncover or win useful sediments while covering of these is prevented.
  • the mined matter is processed. This processing may take place on board of the vessel 20 or elsewhere in the body of water 4, like on the bottom 3 of the body of water 4.
EP14742382.6A 2013-07-12 2014-07-10 Abscheidungswerkzeug für abraum Withdrawn EP3019667A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2011157A NL2011157C2 (en) 2013-07-12 2013-07-12 Tailing deposit tool.
PCT/NL2014/050468 WO2015005785A2 (en) 2013-07-12 2014-07-10 Tailing deposit tool

Publications (1)

Publication Number Publication Date
EP3019667A2 true EP3019667A2 (de) 2016-05-18

Family

ID=49378518

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14742382.6A Withdrawn EP3019667A2 (de) 2013-07-12 2014-07-10 Abscheidungswerkzeug für abraum

Country Status (9)

Country Link
US (1) US10260344B2 (de)
EP (1) EP3019667A2 (de)
JP (1) JP6555783B2 (de)
CN (1) CN105378187B (de)
CA (1) CA2918104A1 (de)
MX (1) MX2016000346A (de)
NL (1) NL2011157C2 (de)
NZ (1) NZ715884A (de)
WO (1) WO2015005785A2 (de)

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JP6140238B2 (ja) * 2015-10-07 2017-05-31 三井造船株式会社 ガス回収装置及び水底メタンハイドレートからのガス回収方法
CN106284585B (zh) * 2016-08-05 2018-12-25 上海交通大学 一种用于海底资源开发的废液处理装置
CN106320417B (zh) * 2016-10-21 2018-07-03 长江水利委员会长江科学院 利用水体自然动能的移动式气动挟沙旋流清淤设备及方法
JP6827767B2 (ja) * 2016-10-24 2021-02-10 三菱重工業株式会社 分離回収装置及びガスハイドレートの回収システム
JP6713405B2 (ja) * 2016-11-11 2020-06-24 株式会社三井Ｅ＆Ｓホールディングス ガスハイドレート回収方法およびガスハイドレート回収装置
JP6713408B2 (ja) * 2016-11-18 2020-06-24 株式会社三井Ｅ＆Ｓホールディングス ガスハイドレート回収装置およびガスハイドレート回収方法
JP6713409B2 (ja) * 2016-11-18 2020-06-24 株式会社三井Ｅ＆Ｓホールディングス ガスハイドレート回収装置およびガスハイドレート回収方法
GB202007660D0 (en) * 2019-11-18 2020-07-08 Harwich Haven Authority Dredging method and apparatus
CN116084953A (zh) * 2023-02-09 2023-05-09 哈尔滨工程大学 一种深海采矿系统
CN117722182A (zh) * 2024-02-07 2024-03-19 长沙矿冶研究院有限责任公司 一种深海多金属结核开采试验系统

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Also Published As

Publication number Publication date
NL2011157C2 (en) 2015-01-13
US20160168992A1 (en) 2016-06-16
CA2918104A1 (en) 2015-01-15
CN105378187A (zh) 2016-03-02
MX2016000346A (es) 2016-07-26
US10260344B2 (en) 2019-04-16
WO2015005785A2 (en) 2015-01-15
JP6555783B2 (ja) 2019-08-07
JP2016526629A (ja) 2016-09-05
WO2015005785A3 (en) 2015-04-30
NZ715884A (en) 2019-07-26
CN105378187B (zh) 2018-05-04

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